ISRC GBJ2F1010761
Verified recording
GBJ2F1010761 is “The Merry Widow: Act III, "Ja, wir sind es, die Grisetten"” by Franz Lehár,
registered on the CopyrightChains blockchain with CopyrightID
0x99636f14fb02d9d04e8dee9f08f3412d67a4c3b2cfbd4ba13b3210b3af0678fa and independently timestamped
in Bitcoin block 957118 on 2026-07-08.
Verify the canonical record, hash, and Bitcoin attestation at
https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010761.
Recording identifiers
- ISRC
- GBJ2F1010761
- Title
- The Merry Widow: Act III, "Ja, wir sind es, die Grisetten"
- Artist
- Franz Lehár
- CopyrightID (CopyrightChains transaction hash)
0x99636f14fb02d9d04e8dee9f08f3412d67a4c3b2cfbd4ba13b3210b3af0678fa
Dual-chain proof evidence
- Bitcoin-attested timestamp
- 2026-07-08T03:20:19+00:00
- Bitcoin block
- 957118
- Canonical record hash
sha256:74cd134cb82ee4e0921f974983443c56fd6592fbce862a6a17d86a0391aa5738- Verification API (6-check server-side result)
- https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBJ2F1010761
- Bitcoin block existence check
- https://blockstream.info/api/block/957118
Full record
Track page: The Merry Widow: Act III, "Ja, wir sind es, die Grisetten" · Machine-readable JSON-LD